 Taking this information to be true, we can assume that Dong would have taught Cheng using Cheng's knowledge of "shuai chiao" as a base.The Bagua styles which most notably display a Xingyi Quan flavor are the styles which were taught by Cheng and his friends Li Cunyi, Liu Dekuan, and Zhang Zhaodong.Although all three of these Xingyiquan masters are recorded as being Baguazhang students of Dong Haichuan, there is evidence that suggests Li, Liu, and Zhang learned their Bagua from Cheng Tinghua, not from Dong Haichuan.